Directional Couplers icon

Directional Couplers allow power to be sampled from a transmission line with selectivity in one direction, discriminating between forward and backward signals. Directivity is the most important factor in selecting a directional coupler, with other important factors including return loss, coupling value, coupling flatness, insertion loss, and power handling.

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  • Bidirectional Couplers allow signals to travel both from input to output and output to input, ensuring that signals can be sent and received without degradation. These are typically used for signal monitoring or power sampling applications.
  • Stripline Directional Couplers are suitable for load-pull testing, output power monitoring and other broadband power sampling applications.
  • Marki's Elite Series Directional Couplers provide the highest directivity, return loss, and coupling accuracy available on the market.
  • High Directivity Bridge Couplers provide the highest directivity across broad bandwidths, including low frequencies down to 200kHz.
  • Low Loss High Power Couplers feature the lowest insertion loss and highest power handling with either a flat or varying coupling factor depending on the design.
  • Dual Directional Couplers consist of two back-to-back bidirectional couplers rendering each coupler insensitive to non-50Ω coupled port terminations.
  • Pick-Off Tees are suitable for signal monitoring to DC in a compact package at the expense of return loss, insertion loss, and power handling.
Family Directional Couplers product example

1 - 59 of 59

2 - 26.5 GHz
Product
C10-0226

DIRECTIONAL COUPLER

Mean Coupling: 10 dBc Directivity: 22 dB Power Handling: 50 W

25 - 110 GHz
Product
MC10-25110M2

MMIC 25-110 GHz Directional Coupler

Mean Coupling: 10 dBc Directivity: 19.5 dB Power Handling: 3 W

2 - 50 GHz
Product
C-0250

DIRECTIONAL COUPLER

Mean Coupling: 12 dBc Directivity: 15 dB Power Handling: 15 W

0.5 - 18 GHz
Product
C20-0R518

DIRECTIONAL COUPLER

Mean Coupling: 20 dBc Directivity: 22 dB Power Handling: 50 W

6 - 67 GHz
Product
C16-0667

DIRECTIONAL COUPLER

Mean Coupling: 16 dBc Directivity: 17 dB Power Handling: 10 W

0.5 - 20 GHz
Product
C20-0R520

DIRECTIONAL COUPLER

Mean Coupling: 20 dBc Directivity: 22 dB Power Handling: 50 W

0 - 30 GHz
Product
PT-0030

RESISTIVE PICK-OFF TEE

Mean Coupling: - dBc Directivity: - dB Power Handling: 1 W

0.5 - 6 GHz
Product
C17-0R506A

Directional Coupler

Mean Coupling: 17.5 dBc Directivity: 20 dB Power Handling: 120 W

0 - 20 GHz
Product
PT-0020

RESISTIVE PICK-OFF TEE

Mean Coupling: - dBc Directivity: - dB Power Handling: 1 W

2 - 20 GHz
Product
CE16-0220T

Elite 2 - 20 GHz Directional Coupler

Mean Coupling: 16 dBc Directivity: 30 dB Power Handling: 20 W

2 - 40 GHz
Product
CE13-0240T

Elite 2-40 GHz Directional Coupler

Mean Coupling: 13 dBc Directivity: 26 dB Power Handling: 20 W

2 - 26.5 GHz
Product
C20-0226

DIRECTIONAL COUPLER

Mean Coupling: 20 dBc Directivity: 22 dB Power Handling: 50 W

0.6 - 40 GHz
Product
CE20-0R640

Elite 0.6-40 GHz Directional Coupler

Mean Coupling: 20 dBc Directivity: 25 dB Power Handling: 20 W

2 - 40 GHz
Product
CE13-0240

Elite 2-40 GHz Directional Coupler

Mean Coupling: 13 dBc Directivity: 28 dB Power Handling: 20 W

1 - 40 GHz
Product
CA-40

AIR-LINE DIRECTIONAL COUPLER

Mean Coupling: 27 dBc Directivity: 24 dB Power Handling: 20 W

0.6 - 20 GHz
Product
CE20-0R620T

Elite 0.6 - 20 GHz Directional Coupler

Mean Coupling: 20 dBc Directivity: 25 dB Power Handling: 20 W

1.5 - 20 GHz
Product
CE10-1R520T

Elite 1.5-20 GHz Directional Coupler

Mean Coupling: 10 dBc Directivity: 30 dB Power Handling: 20 W

2 - 40 GHz
Product
CE16-0240

Elite 2-40 GHz Directional Coupler

Mean Coupling: 16 dBc Directivity: 27 dB Power Handling: 20 W

2 - 40 GHz
Product
CE16-0240T

Elite 2-40 GHz Directional Coupler

Mean Coupling: 16 dBc Directivity: 27 dB Power Handling: 20 W

2 - 40 GHz
Product
CE20-0240T

Elite 2-40 GHz Directional Coupler

Mean Coupling: 20 dBc Directivity: 26 dB Power Handling: 20 W

0.6 - 20 GHz
Product
CE10-0R620T

Elite 0.6 - 20 GHz Directional Coupler

Mean Coupling: 10 dBc Directivity: 25 dB Power Handling: 20 W

1.5 - 40 GHz
Product
CE10-1R540T

Elite 1.5-40 GHz Directional Coupler

Mean Coupling: 10 dBc Directivity: 20 dB Power Handling: 20 W

0.6 - 40 GHz
Product
CE20-0R640T

Elite 0.6-40 GHz Directional Coupler

Mean Coupling: 20 dBc Directivity: 22 dB Power Handling: 20 W

2 - 20 GHz
Product
CE13-0220T

Elite 2-20 GHz Directional Coupler

Mean Coupling: 13 dBc Directivity: 28 dB Power Handling: 20 W

2 - 20 GHz
Product
CE20-0220T

Elite 2-20 GHz Directional Coupler

Mean Coupling: 20 dBc Directivity: 30 dB Power Handling: 20 W

0.45 - 30 GHz
Product
C09-0R430

DIRECTIONAL COUPLER

Mean Coupling: 9 dBc Directivity: 20 dB Power Handling: 20 W

0.45 - 26.5 GHz
Product
C09-0R426

DIRECTIONAL COUPLER

Mean Coupling: 9 dBc Directivity: 20 dB Power Handling: 50 W

0.45 - 18 GHz
Product
C09-0R418

DIRECTIONAL COUPLER

Mean Coupling: 9 dBc Directivity: 22 dB Power Handling: 50 W

4 - 50 GHz
Product
C10-0450

DIRECTIONAL COUPLER

Mean Coupling: 10 dBc Directivity: 15 dB Power Handling: 15 W

0.5 - 12 GHz
Product
C17-0R512

DIRECTIONAL COUPLER

Mean Coupling: 17 dBc Directivity: 20 dB Power Handling: 80 W

0.0002 - 26 GHz
Product
CBR17-0026

HIGH DIRECTIVITY BRIDGE COUPLER

Mean Coupling: 17 dBc Directivity: 23 dB Power Handling: 1 W

0.6 - 40 GHz
Product
CE10-0R640

Elite 0.6-40 GHz Directional Coupler

Mean Coupling: 10 dBc Directivity: 20 dB Power Handling: 20 W

1 - 26.5 GHz
Product
CA-26

Air-Line Directional Coupler

Mean Coupling: 27 dBc Directivity: 24 dB Power Handling: 50 W

1 - 16 GHz
Product
C10-0116

DIRECTIONAL COUPLER

Mean Coupling: 10 dBc Directivity: 20 dB Power Handling: 50 W

1.7 - 26.5 GHz
Product
C16-1R726

DIRECTIONAL COUPLER

Mean Coupling: 16 dBc Directivity: 20 dB Power Handling: 50 W

0.8 - 6.3 GHz
Product
CD10-0106

DUAL DIRECTIONAL COUPLER

Mean Coupling: 10 dBc Directivity: 32 dB Power Handling: 50 W

0.8 - 14.7 GHz
Product
CD10-0114

DUAL DIRECTIONAL COUPLER

Mean Coupling: 10 dBc Directivity: 23 dB Power Handling: 50 W

0.0002 - 3 GHz
Product
CBR16-0003

High Directivity Bridge Coupler

Mean Coupling: 16 dBc Directivity: 40 dB Power Handling: 1 W

6 - 67 GHz
Product
C20-0667

DIRECTIONAL COUPLER

Mean Coupling: 20 dBc Directivity: 17 dB Power Handling: 10 W

0.0002 - 6 GHz
Product
CBR16-0006

High Directivity Bridge Coupler

Mean Coupling: 16 dBc Directivity: 38 dB Power Handling: 1 W

6 - 67 GHz
Product
C10-0667

DIRECTIONAL COUPLER

Mean Coupling: 10 dBc Directivity: 17 dB Power Handling: 10 W

2 - 65 GHz
Product
C-0265

DIRECTIONAL COUPLER

Mean Coupling: 12 dBc Directivity: 15 dB Power Handling: 3 W

0.45 - 12 GHz
Product
C09-0R412

DIRECTIONAL COUPLER

Mean Coupling: 9 dBc Directivity: 22 dB Power Handling: 50 W

1.7 - 18 GHz
Product
C16-1R718

DIRECTIONAL COUPLER

Mean Coupling: 16 dBc Directivity: 20 dB Power Handling: 50 W

1 - 50 GHz
Product
CA-50

Air-Line Directional Coupler

Mean Coupling: 27 dBc Directivity: 24 dB Power Handling: 15 W

1.5 - 40 GHz
Product
CE10-1R540

Elite 1.5-40 GHz Directional Coupler

Mean Coupling: 10 dBc Directivity: 24 dB Power Handling: 20 W

0.5 - 18 GHz
Product
C17-0R518

DIRECTIONAL COUPLER

Mean Coupling: 17 dBc Directivity: 18 dB Power Handling: 60 W

1 - 16 GHz
Product
C20-0116

DIRECTIONAL COUPLER

Mean Coupling: 20 dBc Directivity: 20 dB Power Handling: 50 W

0 - 30 GHz
Product
PT-0030A

RESISTIVE PICK-OFF TEE

Mean Coupling: - dBc Directivity: - dB Power Handling: 1 W

1 - 50 GHz
Product
C13-0150

DIRECTIONAL COUPLER

Mean Coupling: 13 dBc Directivity: 16 dB Power Handling: 15 W

2 - 40 GHz
Product
C20-0240

DIRECTIONAL COUPLER

Mean Coupling: 20 dBc Directivity: 17 dB Power Handling: 20 W

0.0002 - 12 GHz
Product
CBR16-0012

High Directivity Bridge Coupler

Mean Coupling: 12 dBc Directivity: 32 dB Power Handling: 1 W

1 - 18 GHz
Product
CA-18

AIR-LINE DIRECTIONAL COUPLER

Mean Coupling: 30 dBc Directivity: 22 dB Power Handling: 200 W

0.6 - 12 GHz
Product
C20-0R612

DIRECTIONAL COUPLER

Mean Coupling: 20 dBc Directivity: 22 dB Power Handling: 50 W

1 - 26.5 GHz
Product
C13-0126

DIRECTIONAL COUPLER

Mean Coupling: 13 dBc Directivity: 20 dB Power Handling: 50 W

1 - 40 GHz
Product
C13-0140

DIRECTIONAL COUPLER

Mean Coupling: 13 dBc Directivity: 16 dB Power Handling: 20 W

0.5 - 6 GHz
Product
C17-0R506

Directional Coupler

Mean Coupling: 17.5 dBc Directivity: 20 dB Power Handling: 120 W

2 - 40 GHz
Product
CE20-0240

Elite 2-40 GHz Directional Coupler

Mean Coupling: 20 dBc Directivity: 32 dB Power Handling: 20 W

0.6 - 40 GHz
Product
CE10-0R640T

Elite 0.6-40 GHz Directional Coupler

Mean Coupling: 10 dBc Directivity: 20 dB Power Handling: 20 W